WO2004044014A3 - Reaction of fluoropolymer melts - Google Patents

Reaction of fluoropolymer melts Download PDF

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Publication number
WO2004044014A3
WO2004044014A3 PCT/US2003/035836 US0335836W WO2004044014A3 WO 2004044014 A3 WO2004044014 A3 WO 2004044014A3 US 0335836 W US0335836 W US 0335836W WO 2004044014 A3 WO2004044014 A3 WO 2004044014A3
Authority
WO
WIPO (PCT)
Prior art keywords
reaction
fluoropolymer
reaction zone
extruder
molten fluoropolymer
Prior art date
Application number
PCT/US2003/035836
Other languages
French (fr)
Other versions
WO2004044014A2 (en
Inventor
Gregory Allen Chapman
David E Bidstrup
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US10/290,642 external-priority patent/US6838545B2/en
Application filed by Du Pont filed Critical Du Pont
Priority to JP2004552014A priority Critical patent/JP4801353B2/en
Priority to EP03786637A priority patent/EP1567563B1/en
Priority to DE60314663T priority patent/DE60314663T2/en
Publication of WO2004044014A2 publication Critical patent/WO2004044014A2/en
Publication of WO2004044014A3 publication Critical patent/WO2004044014A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/005—Removal of residual monomers by physical means from solid polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment

Abstract

Chemical reactions are carried out with molten fluoropolymer, most conveniently in an extruder, wherein the reaction zone in the extruder is isolated from the melting zone, and the molten fluoropolymer is subdivided in the reaction zone sufficiently that contact and reaction between the reactant and the molten fluoropolymer in the reaction zone is essentially free of mass transfer limitation, followed by devolatilization in isolation from the reaction zone, and cooling the devolatilized fluoropolymer.
PCT/US2003/035836 2002-11-08 2003-11-07 Reaction of fluoropolymer melts WO2004044014A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2004552014A JP4801353B2 (en) 2002-11-08 2003-11-07 Reaction of fluoropolymer melt
EP03786637A EP1567563B1 (en) 2002-11-08 2003-11-07 Reaction of fluoropolymer melts
DE60314663T DE60314663T2 (en) 2002-11-08 2003-11-07 IMPLEMENTATION OF FLUORO POLYMER MELTS

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US10/290,642 US6838545B2 (en) 2002-11-08 2002-11-08 Reaction of fluoropolymer melts
US10/290,642 2002-11-08
US10/691,182 2003-10-22
US10/691,182 US7208569B2 (en) 2002-11-08 2003-10-22 Reaction of fluoropolymer melts

Publications (2)

Publication Number Publication Date
WO2004044014A2 WO2004044014A2 (en) 2004-05-27
WO2004044014A3 true WO2004044014A3 (en) 2004-07-08

Family

ID=32314373

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/035836 WO2004044014A2 (en) 2002-11-08 2003-11-07 Reaction of fluoropolymer melts

Country Status (3)

Country Link
EP (1) EP1567563B1 (en)
DE (1) DE60314663T2 (en)
WO (1) WO2004044014A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7211629B2 (en) * 2004-04-30 2007-05-01 E. I. Du Pont De Nemours And Company Process for the preparation of low fuming fluoropolymer
US7423087B2 (en) 2004-04-30 2008-09-09 E.I. Du Pont De Nemours And Company Reduced fuming fluoropolymer
JP5545639B2 (en) * 2010-04-30 2014-07-09 三井・デュポンフロロケミカル株式会社 Fluoropolymer molded product and method for producing the same
WO2013005743A1 (en) 2011-07-05 2013-01-10 旭硝子株式会社 Treatment method for fluororesin pellets
JP6614385B2 (en) 2018-04-26 2019-12-04 ダイキン工業株式会社 Process for producing purified fluoropolymer
WO2020138239A1 (en) * 2018-12-27 2020-07-02 Ａｇｃ株式会社 Method for producing particles and method for producing molded object

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB766840A (en) * 1953-10-30 1957-01-23 Kellogg M W Co Improvements in or relating to production of perfluorochloroolefin polymers
EP0150953A2 (en) * 1984-01-16 1985-08-07 E.I. Du Pont De Nemours And Company Extrusion finishing of perfluorinated copolymers
EP0178935A1 (en) * 1984-10-18 1986-04-23 E.I. Du Pont De Nemours And Company Heat stable tetrafluoroethylene- perfluoro (alkyl vinyl ether) copolymers
EP0457255A2 (en) * 1990-05-14 1991-11-21 Daikin Industries, Limited Tetrafluoroethylene copolymer and process for preparing the same
US5391709A (en) * 1993-11-17 1995-02-21 E. I. Du Pont De Nemours And Company Purification process of PTFE using fiber bed and heated air
EP0780403A2 (en) * 1995-12-21 1997-06-25 Dyneon GmbH Process for post-treating thermoplastic fluoropolymers
WO2000044797A1 (en) * 1999-01-29 2000-08-03 Dyneon Gmbh & Co.Kg Tetrafluoro ethylene / hexafluoro propylene copolymers with better ductility

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB766840A (en) * 1953-10-30 1957-01-23 Kellogg M W Co Improvements in or relating to production of perfluorochloroolefin polymers
EP0150953A2 (en) * 1984-01-16 1985-08-07 E.I. Du Pont De Nemours And Company Extrusion finishing of perfluorinated copolymers
EP0178935A1 (en) * 1984-10-18 1986-04-23 E.I. Du Pont De Nemours And Company Heat stable tetrafluoroethylene- perfluoro (alkyl vinyl ether) copolymers
EP0457255A2 (en) * 1990-05-14 1991-11-21 Daikin Industries, Limited Tetrafluoroethylene copolymer and process for preparing the same
US5391709A (en) * 1993-11-17 1995-02-21 E. I. Du Pont De Nemours And Company Purification process of PTFE using fiber bed and heated air
EP0780403A2 (en) * 1995-12-21 1997-06-25 Dyneon GmbH Process for post-treating thermoplastic fluoropolymers
EP1070728A2 (en) * 1995-12-21 2001-01-24 Dyneon GmbH & Co. KG Process for post-treating thermoplastic fluoropolymers
WO2000044797A1 (en) * 1999-01-29 2000-08-03 Dyneon Gmbh & Co.Kg Tetrafluoro ethylene / hexafluoro propylene copolymers with better ductility

Also Published As

Publication number Publication date
EP1567563A2 (en) 2005-08-31
EP1567563B1 (en) 2007-06-27
WO2004044014A2 (en) 2004-05-27
DE60314663T2 (en) 2008-02-28
DE60314663D1 (en) 2007-08-09

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